Oh Na-ra is a South Korean actress. She is best known for her roles in the television dramas Woman of 9.9 Billion (2019), Sky Castle (2018 - 2019), My Mister (2018), Judge vs. Judge (2017 - 2018), The Lady in Dignity (2017), Man to Man (2017), Chicago Typewriter (2017), Flowers of the Prison (2016), Come Back Mister (2016), Remember (2015 - 2016), Yong-pal (2015), Hyde Jekyll, Me (2015), Steal Heart (2014), Give Love Away (2013 - 2014), King of Ambition (2013), Feast of the Gods (2012), Miss Ajumma (2011) and Queen of Reversals (2010).
Jeong Seo-yeon has a hard life even though she has been trying to find happiness in her life. Just as she loses all hope of living, she comes across 9.9 Billion. Kang Tae-woo, an ex-detective, tries to uncover his brother’s death that he suspects to be related to the 9.9 Billion. Can she hold on to this huge sum of money?